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At least two sheriff's offices in Florida are investigating after voters in the state say they received threatening messages from people claiming to be affiliated with the Proud Boys that attempt to scare voters into voting for President Donald Trump.According to Florida Today, the emails sent to voters followed a similar format: The sender claimed to be in possession of personal information because they "gained access" to the "entire voting infrastructure." The message then says the voter must "vote for Trump on Election Day or we will come after you."Florida Today reports that the Brevard Supervisor of Elections has reported the messages to local law enforcement. In a Facebook post, the sheriff of Alachua County, located several hours northwest of Brevard County, said it was investigating similar messages with assistance from federal law enforcement. 872

As New Haven, Connecticut, Fire Chief John Alston Jr. spoke to reporters about a spate of drug overdoses on Wednesday, he heard shouting coming from behind him."We're getting another call of a person," Alston said.He quickly helped coordinate the response, and then returned to the microphone.That scene came on the same day that as many as 40 people in the area of New Haven Green were believed to have overdosed on some form of K2 that may have been laced with opioids, according to New Haven police spokesman Officer David Hartman.New Haven Green is a large park and recreation area in the city's downtown.The patients included people of various ages and demographics, Alston said."It's a nationwide problem. Let's address it that way," he said. "It's a nationwide problem that people are self-medicating for several different reasons, and every agency -- police, fire, medical hospitals -- all are strained at this time. This is a problem that's not going away."New Haven police said one person is in custody.Director of Emergency Operations for New Haven Rick Fontana said the patients had symptoms of increased heart rates, decreased respiratory rates and a lot of vomiting. Some people were unconscious, others were semi-conscious.No one has died, but two individuals are considered to be in serious, life-threatening condition. Some individuals who were released from the hospital needed to be treated a second time for an additional apparent overdose, Fontana said.K2 is a synthetic cannabinoid related to marijuana that is frequently laced with other drugs, said Dr. Sandy Bogucki of the Yale School of Public Health.In two cases, Narcan was not effective in the field, but a high dose of Narcan at the hospital was effective in combating the overdose effects. Because of that, authorities believe there was some form of opioid or synthetic fentanyl involved in the substance.The response from emergency responders has been "tremendous," Fontana said.He said authorities have been treating and sometimes transporting six or seven people at one time and the actions of first responders have been "lifesaving." 2131

ATLANTA, Ga. – While residents along the Gulf Coast seek shelter from Hurricane Laura, they should still keep the threat of COVID-19 in mind.Emergency managers, shelter managers, and public health professionals are taking measures to reduce the possible spread of the coronavirus among people who seek safety in a disaster shelter during severe weather events like this.For those staying in a shelter during the storm, the Centers for Disease Control and Prevention (CDC) offered some tips to lower the risk of coronavirus infection:Preparing to shelterIf you need to evacuate, the CDC says to prepare a “go kit” with personal items you cannot do without during an emergency. That includes items that can help protect you and others from COVID-19, like hand sanitizer with at least 60% alcohol, soap, disinfectant wipes, and two masks for each person.Know a safe place to shelter and have several ways to receive weather alerts, such as the National Weather Service’s cell phone alerts, NOAA Weather Radio, or NWS alerts on Twitter.Find out if your local public shelter is open, in case you need to evacuate your home and go there. Your shelter location may be different this year due to the COVID-19 pandemic.Follow guidance from your local public health or emergency management officials on when and where to shelter.Make a plan and prepare a disaster kit for your pets. Find out if your disaster shelter will accept pets. Typically, when shelters accommodate pets, the pets are housed in a separate area from people.Follow safety precautions when using transportation to evacuate. If you have to travel away from your community to evacuate, follow safety precautions for travelers to protect yourself and others from COVID-19.While in a public shelterPractice social distancing. Stay at least 6 feet from other people outside of your household.Follow CDC COVID-19 preventive actions—wash your hands often, cover coughs and sneezes, and follow shelter policies for wearing masks. Avoid sharing food and drink with anyone if possible.Follow disaster shelter policies and procedures designed to protect everyone in the shelter, especially those who are at higher risk for severe illness from COVID-19, including older adults and people of any age who have serious underlying medical conditions.Avoid touching high-touch surfaces, such as handrails, as much as possible. Wash hands with soap and water for at least 20 seconds or use hand sanitizers with at least 60% alcohol immediately after you touch these surfaces.Keep your living area in the shelter clean and disinfect frequently touched items such as toys, cellphones, and other electronics.If you feel sick when you arrive at the shelter or start to feel sick while sheltering, tell shelter staff immediately.Keeping children safe in sheltersTeach and reinforce everyday preventive actions for keeping children healthy.Make sure children aged 2 and older wear masks. Masks should not be used by children under the age of 2. They also should not be used by people having trouble breathing, or who are unconscious, incapacitated, or unable to remove the mask without assistance.Be a good role model—if you wash your hands often, your children are more likely to do the same.Help your children stay at least 6 feet away from anyone who is not in your household.Watch your child for any signs of illness and tell shelter staff if your child may be ill.Try to deal with the disaster calmly and confidently, as this can provide the best support for your children. Help children cope with emergencies. 3559

At 3 p.m. ET on Monday, November 26, a group of researchers will be really sweating. The NASA InSight spacecraft will try to land on Mars.After six months of flight, the lander component of the probe will detach itself from the cruise stage and head into the atmosphere. The lander component initially looks a fair bit like the re-entry capsule used in the 1960s and 1970s for the Apollo moon missions -- sort of conical, with a smooth and flat bottom. That bottom is a crucial heat shield that is designed to protect the probe as it passes through the thin Martian atmosphere.The landing is a devilishly difficult feat. The landing capsule has to batter its way through the atmosphere. It will fly through the Martian air at an initial speed of 12,300 mph, and it must hit the atmosphere at an angle of precisely 12 degrees. Any shallower, and the probe will bounce off into deep space. Any steeper, and the probe will burn itself up in a spectacular and fiery death. The probe will first touch the atmosphere six minutes and 45 seconds before landing. During this phase, it will experience acceleration 12 times that of the Earth's gravity. Were the probe a 150-pound human, during the flaming descent, it would weigh nearly a ton.About 3? minutes after the probe hits the atmosphere, a parachute will deploy, slowing down the probe even more. Fifteen seconds later, explosives will blow the heat shield off, exposing the actual InSight probe hidden inside. Ten seconds after the heat shield falls away, the probe will extend its legs, much like an airplane extends its wheels before touching down.The probe will fall for an additional two minutes attached to the parachute and protected by its conical shell. About 45 seconds before InSight lands, it will drop out of the shell and fall toward the surface. As soon as it leaves the shell, its landing rockets will ignite.The actual InSight probe looks a little bit like the Apollo moon lander, with three legs to support it and a boxy top. The rockets will slow it further and stop any remaining horizontal motion. Then, about 15 seconds before touchdown, the InSight probe will descend at a speed of 8 feet per second, before hopefully touching down gently on the Martian surface.The entire landing sequence will take about seven minutes to occur. A radio signal from Mars to Earth currently takes about eight minutes and seven seconds to get here. So the complete landing process will take place before we find out if it was successful. It will be done automatically, entirely by the probe itself. For the scientists and engineers who designed InSight, this is called "seven minutes of terror."And they are right to be worried. Mars is a graveyard of failed probes. There have been 44 attempts by various national space agencies to land on Mars. Eighteen have been successful. Twenty-three have not. Three have achieved orbit but failed at a landing.So, what does InSight hope to achieve? Well, as it happens, a lot. But it's different than the intrepid Curiosity probe, which NASA landed in 2012. InSight will not move around. Instead, it will stay put and tell us of the interior of Mars.One thing it will do is emit radio waves that we can monitor on Earth. By making careful measurements of how the frequency of the radio waves change, we will be able to measure the degree to which Mars wobbles as it rotates. That will tell us something about the core of the planet, specifically its makeup and information on the degree to which it is molten.InSight will also deploy a seismometer to listen for marsquakes (like earthquakes, but Martian-style) and for impacts of meteors on the planet. Information gleaned from the waves the seismometer detects will tell us more about the planet's interior.The third thing InSight will do is to dig below the planet's surface. Using a jackhammer, the probe will drill down 5 meters (16 feet) into the planet and, basically, it will take the planet's temperature.There are many reasons this is interesting. Taking the temperature at that depth will allow planetary scientists to determine how much heat is escaping from Mars. More broadly, this measurement will allow a clear determination of the temperature of the planet much closer to the core.This information will tell us a lot about how Mars formed, which, in turn, will add to the information of how rocky planets, including our own Earth, typically develop.And if you're more of an explorer kind of person and not so interested in Martian geology, it will also tell us how warm the planet is at modest depths, which will tell us if there is any chance of liquid water on the planet. Perhaps obviously, if the Martian subsurface is warm enough, any buried water will be in liquid form and not ice. Finding liquid water would be the key discovery that would make Martian exploration relatively easy. A relatively recent possible discovery of a buried Martian lake was promising, but the data was not conclusive. Knowing that the ground is warm would be very comforting to possible future explorers.Exploring the solar system is the first step toward exploring the stars. The InSight probe will give us --well -- insight into whether this is something that humanity will achieve in the foreseeable future.And maybe Elon Musk's bet on him getting to Mars will become true. 5329

As the 2020 election approaches, Facebook founder Mark Zuckerberg said the social media networks are giving users an opportunity to limit most political advertisements.The announcement was paired with several measures Zuckerberg said Facebook and Instagram are launching as part of its response to the upcoming election.In order to limit the advertisements on Facebook, go to the Facebook mobile app, click on settings, ad preferences, and ad topics. The video below shows how it works:For Instagram users, click on settings, ads, and ad topic preferences. The video below shows how it works:Zuckerberg said in an op-ed to USA Today, “For those of you who've already made up your minds and just want the election to be over, we hear you — so we're also introducing the ability to turn off seeing political ads. We'll still remind you to vote.” 851

来源：资阳报